6533b7d2fe1ef96bd125e0b8
RESEARCH PRODUCT
Very Long-Lived Photogenerated High-Spin Phase of a Multistable Spin-Crossover Molecular Material
El-eulmi BendeifTeresa DelgadoLaure GuénéeAntoine TissotFrancisco Javier Valverde-muñozMaksym SeredukSébastien PilletAndreas HauserCéline BesnardJosé Antonio Realsubject
Spin statesAbsorption spectroscopy010405 organic chemistryChemistryRelaxation (NMR)General Chemistry[CHIM.MATE]Chemical Sciences/Material chemistry[CHIM.INOR]Chemical Sciences/Inorganic chemistry010402 general chemistry01 natural sciencesBiochemistryMolecular physicsCatalysis0104 chemical sciencesColloid and Surface ChemistrySpin crossoverPhase (matter)Excited state[CHIM.COOR]Chemical Sciences/Coordination chemistryIrradiationSpin (physics)ComputingMilieux_MISCELLANEOUSdescription
The spin-crossover compound [Fe(n-Bu-im)3(tren)](PF6)2 shows an unusual long relaxation time of 20 h after light-induced excited spin state trapping when irradiating at 80 K. This is more than 40 times longer than when irradiating at 10 K. Optical absorption spectroscopy, magnetometry, and X-ray diffraction using synchrotron radiation were used to characterize and explain the different relaxation behaviors of this compound after irradiation below and above 70 K. Rearrangement of the butyl chains of the ligands occurring during the relaxation after irradiation above 70 K is thought to be responsible for the unusually long relaxation time at this temperature.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2018-09-13 | Journal of the American Chemical Society |